6– Imam al-Sadiq (AS) said, ‘There are two traits that one should possess, and if not then begone, begone, begone!’ He was asked, ‘And what are they?’ He said, ‘Performing the prayers at their prescribed times and guarding them, and giving financial aid
[to others].’
[al-Khisal, p. 47, no. 50]

7– Imam al-Kazim (AS) said to Ja`afar b. Muhammad al-`Aasimi, ‘O `Aasim, how are you at maintaing contact with each other and offering
[financial] aid to each other?’
[He said] I said, ‘The best that anyone can be.’ He said, ‘Do any of you come to your brother’s shop or his home in times of hardship and you pull out your purse for him to take whatever he needs without disapproving of him?!’ He said, ‘No.’ Imam (AS) said, ‘Then you are not at a state of mutual assistance that I love.’
[Bihar al-Anwar, v. 74, p. 231, no. 28]